From: Eric Biggers <ebiggers@google.com>
Date: Tue, 25 Aug 2020 19:10:40 -0700
Subject: scsi: ufs: Make ufshcd_print_trs() consider
UFSHCD_QUIRK_PRDT_BYTE_GRAN
Git-commit: cc770ce34aeeff21991f162f0db1a758ea672727
Patch-mainline: v5.10-rc1
References: bsc#1187069
Fix ufshcd_print_trs() to consider UFSHCD_QUIRK_PRDT_BYTE_GRAN when using
utp_transfer_req_desc::prd_table_length, so that it doesn't treat the
number of bytes as the number of entries.
Originally from Kiwoong Kim
(https://lkml.kernel.org/r/20200218233115.8185-1-kwmad.kim@samsung.com).
Link: https://lore.kernel.org/r/20200826021040.152148-1-ebiggers@kernel.org
Fixes: 26f968d7de82 ("scsi: ufs: Introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk")
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Lee Duncan <lduncan@suse.com>
---
drivers/scsi/ufs/ufshcd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3d91def07878..0beb35d8d754 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -473,6 +473,9 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt)
prdt_length = le16_to_cpu(
lrbp->utr_descriptor_ptr->prd_table_length);
+ if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN)
+ prdt_length /= sizeof(struct ufshcd_sg_entry);
+
dev_err(hba->dev,
"UPIU[%d] - PRDT - %d entries phys@0x%llx\n",
tag, prdt_length,